iridium vs. platinum.........

which one's better??? and why is it better???
I have 1998 accord lx 4 cyl.......... intake and exhaust....

 

uhhh...well I will leave the explanation to the japanese auto makers about these plugs.
I would stick to the stock plugs.
If it didnt matter than the 6cyl and 4cyl would both have platinum plugs.

 

I got Iridium and my gas mileages is abit better. As for performance...no difference.

 

we use the NGK Platinums for our maintenance/tune-ups here at work. You'll notice better gas mileage.

Iridiums are the best however because the metal on those conduct better electricity than the platinums. The iridium metal can't be found on earth, they find them on asteroids!

 

if iridium's better than platinum.....why is platinum more expensive then iridium????

 

I went ahead and tried the Silverstone plugs by Nology www.nology.com they going the way of silver being a good conductor. Since it was Nology I took a chance. Good plug, felt a difference right away, but now it's like whatever...you get used to it ya know?

 

maybe platinums spark hotter but doesnt last as long?

 

uhmm...i just bought some denso iridiums and they were $12.99 each. opposed to the $5.99 of the platinums.

do you mean the actual cost of the metal?

 

how often u guys change ur sparks plugs? i change mine with same stock honda over 2 yr dont know if i should change them?

 

get NGK coppers for ~$2.50 apiece. the 4 bangers come with ngk coppers stock and they are easy to replace. change them once a year for best performance.

platinums are crap, they are designed for longevity not performance. iridiums combine performance and longevity and are best for cars that the plugs are hard to replace in like the V6. since you have a inline 4 those plugs are easy to replace so why not change them once a year with ngk coppers.